21787155

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37243}}^1$

素因数の和:37267

約数の個数: 24

約数和(自身を含む): 40670448

約数和(自身を除く): 18883293

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 37243, 111729, 186215, 335187, 484159, 558645, 1452477, 1675935, 2420795, 4357431, 7262385, 21787155]

約数ペア:

[(1, 21787155), (3, 7262385), (5, 4357431), (9, 2420795), (13, 1675935), (15, 1452477), (39, 558645), (45, 484159), (65, 335187), (117, 186215), (195, 111729), (585, 37243)]